Smart Crystalline Silicon by Tongwei
High-purity Crystalline Silicon Quality Assurance
500
Owns more than 500 patents
with independent IPR
90%
More than 90% of silicon materials
reach the level of electronic grade
NO.1
NO.1 in high-purity crystalline
silicon shipments in the global
99.999999999%
The purity of key impurity elements
of the product reaches 99.999999999%
High-purity crystalline silicon material (mono/poly silicon material)
Modified Siemens Method
Multiple independent patented technologies
Significant increase in single-line production capacity
Significant reduction in energy and material consumption
Industry Leader in Quality
Resistivity
<ΩNaN>
> 200
Purity
<%>
> 99.999999999%
Density
<g/cm³>
2.32~2.34
Melting point
<℃>
1410
Boiling point
<℃>
2355

Material performance

Conductivity typeN-type
Resistivity>00ΩNaN
MCLTN-type
Content of 9 bulk metal impurities<0.5ppbw
Content of 15 surface metal impurities<0.8ppbw
Industrial Silicon
Used in industrial fields such as chemical industry, metallurgy, electronic information, machinery manufacturing, aviation and aerospace, shipbuilding, and energy development, it is an indispensable material for modern industries, especially high-tech industries.
High melting point
Good heat resistance
High antioxidant effect
Silicon Rod
Product description: silicon rods are prepared by CZ technology, have uniform appearance and excellent electrical properties, and are key materials for manufacturing high-performance PV devices.
Low oxygen and low carbon
Low defect
Solar grade monocrystalline silicon rod with high minority carrier lifetime
Silicon Wafer
The silicon wafer boasts stable quality, exceptional electrical performance, and an outstanding average value for TTV line marks. With a more refined grade classification system, it meets the A-class requirements of all domestic cells, ensuring unparalleled performance and reliability.
Lower edge chipping and hidden crack
Leading appearance quality
Circular Economy, Safe and Environmental Friendly
Polyvinyl Chloride (PVC)
White powdery high molecular compound, insoluble in water, gasoline, and ethanol; swelled or dissolved in ether, ketone, and chlorinated aliphatic hydrocarbon; strong corrosion resistance and good dielectric performance
Suspension DCS Automatic Control Process Production Technology
Stable Product Quality
Excellent Parameters
Less Crystal Points
Good Forming
High Transparency
Maintain 100% premium rate for a long time
Circular Economy, Safe and Environmental Friendly
Carbide Slag Cement and Commercial Concrete
Low-carbon, green, environment-friendly, ecological
Good frost resistance, abrasion resistance, and volume stability
Concrete Batching Workability
Small slump loss over time to meet the transportation requirements for different distances.
Circular Economy, Safe and Environmental Friendly
Ion Membrane Caustic Soda
Colorless, transparent, viscous liquid with high corrosivity. It is widely used in cathode material precursors for NEV batteries, PV solar cells, aluminum oxide, viscose fiber, pesticide, medicine, chemical, papermaking, printing, and dyeing industries.
Excellent Performance
Can meet the environmental protection requirements for PVC of the European Union
Less crystal points, good molding, high transparency. It is the first choice for heat shrinkable film material
Stable Quality
Food Packaging Grade
It does not contain any harmful substances specified in the list of 10 toxic substances in the ROHS of the European Union and Chinese national standards
YONGXIANG
Established in November 2002, Sichuan Yongxiang Co., Ltd., has formed a circular economy industrial chain that integrates new energy and chemical industry “from brine, caustic soda, polyvinyl chloride to carbide slag cement" and "from hydrogen chloride, trichlorosilane to polysilicon" after 20 years of development.

Contact Us

Tel: 0833-3155118